<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区 -->
        <el-card>         
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" 
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUserList">
                        <el-button slot="append" 
                        icon="el-icon-search"
                        @click="getUserList"
                        ></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>

            <!-- 用户列表区 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch
                            v-model="scope.row.mg_state"
                            @change="userstateChanged(scope.row)"
                            >
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"
                        @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini"
                        @click="removeUserById(scope.row.id)"></el-button>
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                             <el-button type="warning" icon="el-icon-setting" size="mini"
                             @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>

        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed"
            >
            <!-- 内容主体区 -->
            <el-form :model="addForm" status-icon :rules="addFormrules" 
            ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input  v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input  v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input  v-model="addForm.mobile"></el-input>
                </el-form-item>
                
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
            title="修改用户信息"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClosed"
            >
            <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 分配角色的对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDiaglogClosed"
            >
            <div>
                <p>当前用户:{{userInfo.username}}</p>
                <p>当前角色:{{userInfo.role_name}}</p>
                <p>分配新角色:
                     <el-select v-model="seletedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span>
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        var checkEmail = (rule,value,cb)=>{
            //验证邮箱的规则
            const regEmail = /^[a-zA-Z0-9_-]+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-]+)+/
                if(regEmail.test(value)){
                    //合法的邮箱
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
        }
        var checkMobile = (rule,value,cb) =>{
            //验证手机号的规则
            const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]\14[57])[0-9]{8}$/
            if(regMobile.test(value)){
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return{
            //获取用户列表的参数对象
            queryInfo:{
                query:'',
                // 页数
                pagenum:1,
                // 当前每页显示多少数据
                pagesize:2
            },
            userlist:[],
            total:0,
            addDialogVisible:false,
            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                mobile:'',
                email:''
            },
            // 添加用户的表单数据的验证规则
            addFormrules:{
                username:[
                    {
                        required:true,message:'请输入用户名',trigger:'blur'
                    },{min:3,max:10,message:'用户名不符合规则！',trigger:'blur'}
                ],
                password:[
                    {
                        required:true,message:'请输入密码',trigger:'blur'
                    },{min:6,max:16,message:'密码不符合规则！',trigger:'blur'}
                ],
                email:[
                    {
                        required:true,message:'请输入邮箱',trigger:'blur'
                    },{validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {
                        required:true,message:'请输入手机号',trigger:'blur'
                    },{validator:checkMobile,trigger:'blur'}
                ]
            },
            //控制修改对话框的显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{},
            //修改表单的验证规则对象
            editFormRules:{
                email:[
                    { required:true,message:'请输入邮箱',trigger:'blur'},
                    { validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    { required:true,message:'请输入手机号',trigger:'blur'},
                    { validator:checkMobile,trigger:'blur'}
                ]
            },
            //控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            rolesList:[],
            //已选中的角色id值
            seletedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data: res} = await this.$http.get('users',{params:this.queryInfo})
            if(res.meta.status !== 200){
                return this.$message.error('error!')
            } 
                this.userlist = res.data.users
                this.total = res.data.total
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            // console.log(newSize);
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage){
            // console.log(newPage);
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听Switch开关状态的改变
        async userstateChanged(userinfo){
            // console.log(userinfo);
            const {data:res} =  await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200){
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败!')
            }
            this.$message.success('更新用户状态成功!')
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮添加用户[表单的预校验]
        addUser(){
            this.$refs.addFormRef.validate(async valid =>{
                if(!valid) return
                const {data:res} = await this.$http.post('users',this.addForm)
                if(res.meta.status !==201){
                    this.$message.error('添加用户失败!')
                }
                this.$message.success('添加用户成功!')
                //隐藏添加用户的对话框
                this.addDialogVisible = false
                //重新获取用户的列表
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id){
            const {data:res} = await this.$http.get('users/'+id)
            if(res.meta.status !== 200){
                return this.$message.error('查询用户信息失败!')
            }
            this.editForm = res.data
            this.editDialogVisible = true
            // console.log(id);
        },
        //监听修改对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
                // console.log(valid);
                if(!valid) return 
                const {data:res} = await this.$http.put('users/'+ this.editForm.id,{email:this.editForm.email,
                mobile:this.editForm.mobile})
                if(res.meta.status !== 200){
                   return this.$message.error('修改用户信息失败!') 
                }
                //关闭对话框
                this.editDialogVisible = false
                //刷新数据列表
                this.getUserList()
                //提示修改成功
                this.$message.success('修改用户信息成功!')
            })
        },
        //根据id删除对应的用户
        async removeUserById(id){
            // console.log(id);
            //弹窗询问是否确定删除
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => {
                return err
            })
            //如果用户确认删除  则返回值为 confirm
            //如果用户取消删除  则返回值为 cancel
            // console.log(confirmResult);
            if(confirmResult !=='confirm'){
                return this.$message.info('已取消删除!')
            }
            // console.log('确认了删除');
            const {data:res} = await this.$http.delete('users/'+ id)
            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败!')
            }
            this.$message.success('删除用户成功!')
            this.getUserList()
        },
        //分配角色的对话框
        async setRole(userInfo){
            this.userInfo = userInfo
            //在展示对话框之前获取所有角色列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error('分配角色失败!')
            }
            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        async saveRoleInfo(){
            if(!this.seletedRoleId){
                return this.$message.error('请选择要分配的角色!')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.seletedRoleId})
            if(res.meta.status !== 200){
                return this.$message.error('更新角色失败!')
            }
            this.$message.success('更新角色成功!')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        //监听角色分配对话框的关闭
        setRoleDiaglogClosed(){
            this.seletedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>